Short Notes on Cactaceae| Dicotyledonae
Cactaceae are strongly xerophytic herbs or shrubs, rarely trees; roots elongated, slender, fleshy, occasionally tuberosus, often a well-developed tap-root occurs; stem fleshy, usually modified into phylloclade's of various shapes, flat or cylindric, angular, ribbed, often globose, provided with spines or thorns, rarely bearing normal leaves. Flowers are solitary or in clusters, rarely paniculate or spikate, usually sessile, hermaphrodite, actinomorphic or [...]